111001101010001 has 16 divisors (see below), whose sum is σ = 112531437139968. Its totient is φ = 109484478331200.

The previous prime is 111001101009977. The next prime is 111001101010027. The reversal of 111001101010001 is 100010101100111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111001101010001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111001101010061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5990516 + ... + 16058906.

It is an arithmetic number, because the mean of its divisors is an integer number (7033214821248).

Almost surely, 2^{111001101010001} is an apocalyptic number.

It is an amenable number.

111001101010001 is a deficient number, since it is larger than the sum of its proper divisors (1530336129967).

111001101010001 is a wasteful number, since it uses less digits than its factorization.

111001101010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10069072.

The product of its (nonzero) digits is 1, while the sum is 8.

Adding to 111001101010001 its reverse (100010101100111), we get a palindrome (211011202110112).

The spelling of 111001101010001 in words is "one hundred eleven trillion, one billion, one hundred one million, ten thousand, one".